What to Shoot at Night?

So, is there anything worth shooting at night? I mainly use my camera for travel photography (and am trying to branch into wildlife). Lately, however, I've been wanting to shoot in the evenings, and I often work late. So, what is there that's worth shooting at night? I can only take so many photos of my pet rabbit...

Landscapes and scenery are ideal for night shooting, as they can be done on a tripod without trying to capture a moving subject with the longer shutter speeds required at night. Some moving subjects can be incorporated into those long exposures for effect, such as light trails or "ghost" people.

There are quite a few fairly bright objects to be imaged even in heavily light polluted areas. I'm stuck in the light dome from the local ballpark, airport and several industrial areas so it is quite bright but can still find things to image in the night sky.

The planets (Saturn, Jupiter and Venus anyway) and moon are pretty easy to spot and a challenge to image and do not suffer much from light pollution.

The Andromeda galaxy (the size of 3 full moons) is also a good one as is the Orion complex of nebulae.

The nice thing about digital is much of the problems from light pollution can be addressed in post. Noise is still a tough nut to crack.